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Seal Beach, California

City in Orange County, California

Air quality

The air at Seal Beach

Index 71, moderate, led by nitrogen dioxide. Read at 9 AM from its reporting area, South Coastal LA (CA), 7 miles off.

71Moderate
  • Fine particles (PM2.5)57Moderate11.8 mi
  • Ozone14Good33 ppb10 mi
  • Coarse particles (PM10)49Good10 mi
  • Nitrogen dioxide71Moderate73.2 ppb9.4 mi
  • Sulfur dioxide1Good1.8 ppb22.6 mi
  • Carbon monoxide-0.3 ppm10.7 mi

The days ahead

Moderate each day through Today, led by coarse particles. Yesterday measured 50, good.

Smoke, the next 45 hours

Little smoke near the ground through Sun 5 AM: the index from smoke stays at 6 or under.

FriSatSun

Precipitation

What has fallen at Seal Beach

None in the last 3 days, to Fri 8 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.00in

Visibility

How far you can see at Seal Beach, the next 45 hours

Visibility stays 8 miles or more through Sun 5 AM, lowest 8 miles Sun 3 AM.

FriSatSun

On the radar over Seal Beach, CaliforniaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 6 instruments nearest Seal Beach, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.6 miles away.

measured now4 instruments

measured daily2 instruments

Seal Beach 1.8 SWCA-OR-75

In a volunteer observer's own ground/1.6 mi away/6 ft/2 ft below here

precip, snowfall, snow depth

Rank-

Santa Ana Fire STNSTAC1

At a cooperative observer's station/12.7 mi away/125 ft/117 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Los Alamitos AAF, drawn

The nearest airport reporting now, 2.7 mi from Seal Beach, California. From its report of Oct 16, 2026, 8:55 AM local time: 3 of its 6 sheets.

The sky

A few clouds at 20,000 ft; visibility 10 mi or more.

Section of the sky over Los Alamitos AAF, height above the station to scale: a few clouds cloud with its base at 20,000 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SLIFIG. A THE SKY OVER LOS ALAMITOS AAFSECTION, HEIGHT ABOVE THE STATION TO SCALE, EACH LAYER AT THE HEIGHT OF ITS BASE AS REPORTED; COVER IN EIGHTHS OF THE SKY; TOPS NOT MEASUREDFT ABOVE THE STATION05,00010,00015,00020,00025,00030,000ETAGESLOWMIDDLEHIGHTHE STATIONFEW 20,000 FTA FEW CLOUDS, 1 TO 2 EIGHTHS OF THE SKYVISIBILITY, MILES: 10 MI OR MORE0510TITLELos Alamitos AAF, the skySTATION REPORT · ASOS SLITYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-SLI-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-013, FB-SKY-014, FB-SKY-010, FB-SKY-011, FB-SKY-012

The air

87.4 F with a dew point of 37.2 F, 17 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 11,300 ft up; the lowest cloud reported is at 20,000 ft.

Chart of the air at Los Alamitos AAF: temperature 87.4 degrees Fahrenheit and dew point 37.2, 17 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 11,300 feet above the station, against the lowest cloud reported at 20,000 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SLIFIG. B THE AIR AT LOS ALAMITOS AAFTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION02,0004,0006,0008,00010,00012,00014,00016,00018,00020,00022,00024,00020 F40 F60 F80 F100 FSATURATES 11,300 FT ABOVE THE STATION, AT 27.0 FLOWEST CLOUD REPORTED, FEW 20,000 FTTEMPERATURE 87.4 FDEW POINT 37.2 FSPREAD 50.2 FRELATIVE HUMIDITY 17 PER CENTTHE AIR COOLS ABOUT 5.4 F EACH 1,000 FT IT RISES, AND ITS DEW POINT ABOUT 1 FSOLID: THE LIFTED AIR'S TEMPERATURE; DASHED: ITS DEW POINTTITLELos Alamitos AAF, the airSTATION REPORT · ASOS SLITYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-SLI-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the northeast (50 degrees) at 13 mph, gusting 23 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 39 mph.

Plan of the wind at Los Alamitos AAF, north up: blowing from 50 degrees, the northeast, at 13 miles an hour, gusting 23; beside it the Beaufort scale from calm to hurricane force, force 4, moderate breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SLIFIG. C THE WIND AT LOS ALAMITOS AAFPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 50°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE13NOW, 13 MPH5FRESH BREEZE19GUST, 23 MPH6STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLELos Alamitos AAF, the windSTATION REPORT · ASOS SLITYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-SLI-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Los Alamitos AAF, in 6 sheets, each beside the Field Book plates that explain it

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Snow on the ground

Elsewhere in California

33 places, each with its own forecast and its own instruments.

Near Seal Beach

The nearest places, each with its own forecast and the instruments nearest it.

Near Seal Beach

River and lake gauges